Steam boiler furnace,



W. J. REILLY.

STEAM BolLER FURNACE.

APPLICATION FILED OCT. H1, T916. 1,305,409.

2 SHEETS-SHEET l.

W. 1. REILLY.

STEAM BOILER FUHNACE. APPLICATION mw o'o. 10 wie.

1 ,305 ,409. Patented June 3, 1919.

2 SHEETS-SHEET 2.

j@ 19 INVENTOR. www,

UNITED STATES PATENT oEEIoE.

WILLIAM J. REILLY, 0F DENVER, COLORADO, ASSIGNOR :TO THE BABCOCK & WILCOX COMPANY, 0F BAYONNE, NEW JERSEY, A

conPoEA'rIoN 0F NEW JERSEY.

STEAM-BOILER FURNACE.

Specification of Letters Patent.

'Patented June 3. 1919.

To oil, wlw/n 1f/moy concern:

Be it known that I, WiLLIAM J. REALLY, a citizen of the United States, residing at Denver, in the county of Denver', State of Colorado, have invented certain new andiiseful Improvements in Steam-Boiler Furnaces, ot which the following is a specification.

My invention relates-to steam boiler fur naees and more particularly to the provision of an ash flume for the removal of ashes falling from the rear of a chain grate stoker and will be understood by reference to the accompanying drawings, in which Figure 1 is a vertical longitudinal section, more or less diavramnuitic, of a ortion of a Water tube boiler, stoker and as i pit; Fig. 2 a ver tical section of a modified arrangement of the fiume; Fig. 3, a vertical transverse section to the ash pitsl of a battery of boilers illustrates the use of a common fiume; Fig. 4 an enlarged view of one of the dampers o Fig 3, showing the damper closed; and Fig. 5, a vertical longitudinal section of the rear of the furnace chamber of the boilers of Fig. 3.

Similar reference numerals indicate similar parts 'in the several views.

In Fig. 1, I have shown an arrangement for a single boiler in which the numeral 1 designates a )o1-tion of the tubes of'a bank ot' horizontally inclined water tubes, which will be supported in the usual way above the 4furnace chamber. The boiler is fired by a chain grate stoker 2, the frame of `which is mounted on wheels adapted to travel upon tracks 3 to enable the Stoker to be run into and out of the furnace chamber. At the rear of the furnace chamber is a bridge vwal] 4 extending upwardly from the floor to the transverse baille 5. The bridge Wall is protected by a water box 6 which may be connected to the boiler circulation through piIeS 7. l

elow the Stoker is a pit 8, the Hoor of which, at its inner end, is so constructed as to form a flume 9, which` as shown in Fig. 1, is immediatel.;I below the rear end of the Stoker. Hingedto a bracket 10 is a gate or damper 11, which in its open position is at the right, alongside the front of the downward eXtension of the bridge Wall 4, so that the ash and fuel refuse falling over the rear end of the stoker may fall unobstructed into the flume 9. To effect the removal of the ash and fuel refuse from the flume, provision will be made to flush the llumc with Water either continuously or. intermittently. The damper 11 is of such length that when moved to the left, or closed, it'will reach the lefthandua'll ot' the Hume 9. For thc purpose of swinging or moving the damper 11, I provide a chain l2 secured thereto and extending toward the front of the pit 8 so as to be accessible to the operator. when the damper ll is swung to open position it arts to dump or aid in dumping the ash and fuel rct'use lying; partly thereon. into the flume i).

Hinged to the stoker trame is a second gate or damper 125 of such length as to reach the floor of the pit 8. The damper 13 is shown in its normal position in Fig. 1 and extends from the :stoker traine to substantially the floor of the pit 8, its purpose being to prevent an undue amount of air entering theiurnace at the rear of the stokcr. The damper 13 may be raised by means ot' a. chain 14, extending to the front of the stolrer, when it is desired to gain access to the fiume 9 to inspect it, or for any other purose. l

Placed at the lloor line and in front of the brid e wall 4, is a cleaning door 1T having its sill sloping inwardly. The purpose ot' this door is to afford a means of observation oi the operation of the fiume and of the ash accumulation, and to permit of the mechanical cleaning ot' the flume from the outside of the boiler setting should the flow of water become obstructed by an undue accumulation of ash.

1n Fig. :L a modification is shown in which the Hume 9 is built in the Hoor of the pit8r a sufiicient distance from the front. of the bridge wall 4 to provide a floor 15 between the bridge wall and the flume to receive the ash and fuel refuse fallin r from the rear of the stoker. Located su stantially at the junction ofthe ash pit floor and the face of the bridge wall is a. perforated pipe 16, through which water is discharged to wash the ash and fuel refuse from the Hoor 15, into the 'lunlc 9. This pipe may be controlled by a suitable valve.

In Figs. 3, 4 and 5, I have shown an ar rangement applicable to a battery of boilers having a common flume i8 into which the ash and vfuel refuse are discharged, the Hoor of the Hume being given a slight downward -iuclination in the direction of the flow o1' the water. The latter is iullnitted through a volved pipe 19 either continuously or inter inittently. In this arrangement, the dampers 11 are closed by moving them to the left, us shown in full lines in ["ign, when one of the boilers of the battery is @but down to thereby prevent cold nir rushing in :1t the rear und [towing t0 the other boilers, or to minimize much :is possible the air leakage which may oeenr between boilers working on the .saine flume :1nd on the same smoke stack. In Fig. 3, the second damper 11 from the left is shown as open, or in its ri ht-hand position. The dampers 11 of the otter boilers nre shown as closed or in their left-hand position over the flume.

that l claim und desire to secure by Letters Potent of the United States isz-- l. The eomhinntion with :i boiler of a rhnnibor extendingnnrlerneoth the saine to :1 point intermediate ita length, a mechanical Stoker located in suicl clnnnbel the inner portion ot the Chaunber havingn transversely extending thune livio the rear portion 0f the IQtoker, means for flowing water through the flume, :i demper supported above the Hume and adapted to be moved over the sume, und sin zur damper between the inner portion of the chamber And the Hume.

2. The ooinbinntion with n plurality of boilers each having n chamberextending be nenth :intl terminating intermediate the length of the boiler, merlnmionl strikers: in said chambers, a filnne common to all the chambers and extending along the inner floor portions thereof, (lampen arranged above the fiume and adapted to he moved to eut ofi each chamber from its portion of the common fiume, and means for fiowing water through said Hume.

In testimony7 whereof` l hm'e hereunto signed in v nume in the lgiresenro of two subw svribing n itnessen.

WILLIAM J. REILLY.

il" it nonnen EUGENE l* TERRY, DAVID S. JACoUS, 

